JP2014140441A - Drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve miniaturization of a heat pump device casing while providing drying performance.SOLUTION: The drying machine includes: a rotary drum 1 for housing an object to be dried; a heat pump device 30 in which a compressor 32, a radiator 33, a decompressor 34 and a heat sink 35 are connected with a pipeline 36 filled with a refrigerant; a heat pump device casing 31 housing the heat pump device 30; circulation air paths 41, 43 for guiding drying air from the rotary drum 1 to the rotary drum 1 again through the heat pump device 30; and a blower 40 for circulating drying air in the circulation air paths 41, 43. A casing inlet 31a for introducing drying air to the heat pump device 30 and a casing outlet 31b for discharging drying air are provided on a sidewall of the heat pump device 30. A line segment Y connecting the casing inlet 31a and the heat sink 35 and a line segment X connecting the casing outlet 31b and the radiator 33 form an angle of more than 0 degree and less than 180 degrees.

Description

  The present invention relates to a dryer for drying clothes by a heat pump method.

  A conventional clothes dryer of this type will be described with reference to FIGS. FIG. 6 is a longitudinal sectional view of a conventional clothes dryer, and FIG. 7 is a diagram showing a drying cycle.

  A rotating drum 103 that rotates with the clothes 102 placed inside the outer case 101 is disposed, and a clothes insertion port formed on the front surface of the rotating drum 103 is open to the front surface of the outer case 101 and is opened and closed by a door 104. . Further, the inside of the rotating drum 103 is also a drying chamber 105, and constitutes an air circulation path 109 for circulating air in the order of the radiator 107, the drying chamber 105, and the heat absorber 108.

  The heat absorber 108 is arranged in a substantially vertical direction, and the heat radiator 107 is located on the leeward side of the heat absorber 108 and is attached substantially parallel to the heat absorber 108. A partition plate 114 is provided between the heat absorber 108 and the heat radiator 107 in substantially parallel to the heat absorber 108. In addition, end plates are provided at the end portions of the radiator 107 and the heat absorber 108 in order to separate the space for arranging the compressor 110 and the throttle means 107 and the circulation air passage.

  About the clothes dryer comprised as mentioned above, the operation | movement is demonstrated below.

  The heat absorber 108 and the heat radiator 107 constitute a heat pump cycle that circulates the refrigerant from the compressor 110, the throttle means 111 such as a capillary tube, and the like, and the gas refrigerant becomes a high temperature and high pressure state by driving the compressor 110. Flows into the radiator 107. By exchanging heat with the circulating air by the radiator 107, the circulating air is heated, the refrigerant is cooled and condensed, and changes into a high-pressure liquid refrigerant state.

  Next, the high-pressure liquid refrigerant is depressurized by the throttle means 111 and flows into the heat absorber 108 as a low-temperature low-pressure liquid refrigerant or a gas-liquid two-phase refrigerant. The heat absorber 108 exchanges heat with the high-humidity air coming from the drying chamber 105, the circulating air is cooled and dehumidified, and the refrigerant is heated to become a low-pressure gas refrigerant and reach the compressor 110.

  On the other hand, when the circulating air is cooled by the heat absorber 108 and the air is cooled below the dew point temperature, condensation is formed on the surface of the heat absorber 108 and the air is dehumidified. The air whose absolute humidity has been lowered is heated by the radiator 107, becomes high-temperature and low-humidity air, blows into the drying chamber 105, and dries the clothes 102. Since the heating amount at this time is the sum of the heat exchange amount in the heat absorber 108 and the input of the compressor 110, the air temperature exiting from the air outlet 115 is higher than the air temperature flowing in from the air inlet 116. It becomes higher and the heating amount is higher than the input of the compressor which is the input of the equipment. A series of refrigeration cycles is formed as described above.

  At this time, dehumidified water dewed by the heat absorber 108 is dropped by gravity onto a drain pan 117 disposed below the heat absorber 108 and discharged from the drain port (not shown) to the outside of the apparatus.

JP 2005-304985 A

  However, as described above, the clothes dryer or the washing dryer provided with the heat pump device includes a heat pump device in which a compressor, a radiator, a squeezing means, and a heat absorber are connected by a pipe line such as a copper tube, a heat absorber, It requires an air passage for flowing air to the radiator and has more components than a heater-type clothes dryer or washing dryer. It must be used effectively and these components must be stored compactly.

  However, in order to reduce the size of the heat pump device and ensure the drying performance, the heat absorber and the radiator are secured to a predetermined size, the available space in the housing is effectively used, and the heat pump device is made compact. It had the problem of having to.

  The present invention solves the above-described conventional problems, and an object thereof is to realize a reduction in size of a heat pump device housing while obtaining drying performance.

  In order to achieve the above object, a dryer according to the present invention includes a drying chamber for storing an object to be dried, a heat pump device in which a compressor, a radiator, a decompressor, and a heat absorber are connected by a pipe filled with a refrigerant, A heat pump device housing that houses the heat pump device, a circulation air passage that guides the drying air from the drying chamber to the drying chamber through the heat pump device, and a drying air in the circulation air passage are circulated. An inlet for introducing drying air into the heat pump device and an outlet for exhausting the drying air are provided on a side wall of the heat pump device, and a line segment connecting the inlet and the heat absorber, The line segment connecting the outlet and the radiator is configured to form an angle greater than 0 degrees and less than 180 degrees.

  Thus, by providing the inlet and outlet on the side wall of the heat pump device housing, air can flow into and out of the heat pump device housing in the horizontal direction, so the space below the drying chamber is utilized. A heat pump device can be arranged. Therefore, the gap on the back side between the drying chamber and the dryer main body can be reduced, and the height of the drying chamber can be reduced. In addition, since a predetermined angle is formed between the direction of air flowing into the heat pump device housing and the direction of air flowing out, the heat pump device can be easily arranged in a narrow space. As a result, the heat pump device housing can be made small, and the overall size of the dryer can be reduced.

  In the dryer of the present invention, the air passage in the heat pump device is formed on the side wall, and the air passage is curved, so that a narrow space can be used effectively, so the dryer body can be downsized. Can do.

Side surface sectional drawing of the dryer which concerns on Embodiment 1 of this invention. Perspective view from the rear showing a part of the dryer Perspective view of heat pump device of the dryer The top view which shows a part of heat pump apparatus and heat pump apparatus housing | casing of the dryer Side view of the heat pump unit housing of the dryer Side view of a conventional dryer Figure of conventional dryer drying cycle system

The dryer according to the present invention includes a drying chamber for storing an object to be dried, a heat pump device in which a compressor, a radiator, a decompressor and a heat absorber are connected by a pipe filled with a refrigerant, and a heat pump device for housing the heat pump device. A heat pump device comprising: a housing; a circulation air path that guides the drying air from the drying chamber to the drying chamber through the heat pump device; and a blower that circulates the drying air in the circulation air passage. An inlet for introducing drying air and an outlet for exhausting the drying air are provided on a side wall of the heat pump device, and a line segment connecting the inlet and the heat absorber, the outlet and the radiator are connected to each other. The connecting line segment is configured to form an angle greater than 0 degrees and less than 180 degrees.

  Thus, by providing the inlet and outlet on the side wall of the heat pump device housing, air can flow into and out of the heat pump device housing in the horizontal direction, so the space below the drying chamber is utilized. A heat pump device can be arranged. Therefore, the gap on the back side between the drying chamber and the dryer main body can be reduced, and the height of the drying chamber can be reduced. In addition, since a predetermined angle is formed between the direction of air flowing into the heat pump device housing and the direction of air flowing out, the heat pump device can be easily arranged in a narrow space. As a result, the heat pump device housing can be made small, and the overall size of the dryer can be reduced.

  In the upper machine configuration, the line connecting the inlet and the heat absorber and the line connecting the outlet and the heat radiator may be approximately 90 degrees.

  Thus, by providing the inlet and outlet on the side wall of the heat pump device housing, air can flow into and out of the heat pump device housing in the horizontal direction, so the space below the drying chamber is utilized. A heat pump device can be arranged. Therefore, the gap on the back side between the drying chamber and the dryer main body can be reduced. In addition, since a predetermined angle is formed between the direction of air flowing into the heat pump device housing and the direction of air flowing out, the heat pump device can be easily arranged in a narrow space. As a result, the heat pump device housing can be made small, and the overall size of the dryer can be reduced.

(Embodiment 1)
Hereinafter, a dryer according to an embodiment of the present invention will be described with reference to the drawings. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.

  FIG. 1 is a side sectional view of a dryer according to Embodiment 1 of the present invention, and FIG. 2 is a perspective view showing a part of the dryer as seen from the rear.

  As shown in FIG. 1, the rotating drum 1 (drying chamber) is formed in a bottomed cylindrical shape, and a large number of water passage holes 2 are provided on the entire periphery. The water tank 3 accommodates the rotary drum 1 in a rotatable manner. A rotating shaft 4 (rotating center axis) is provided at the rotation center of the rotating drum 1 to support the rotating drum 1 and the axial center direction of the rotating drum 1 is inclined downward from the front side to the back side. Set up. A motor 5 attached to the rear surface of the water tank 3 is connected to the rotary shaft 4 to drive the rotary drum 1 to rotate in the forward and reverse directions.

  On the inner wall surface of the rotating drum 1, a plurality of protruding plates 6 for stirring clothes are provided. When the motor 5 is driven and the rotating drum 1 rotates, the protruding plate 6 lifts the clothes in the rotating drum 1 upward. When clothing is placed on top, it falls down due to gravity. In this way, the clothes in the rotating drum 1 can be stirred and dried uniformly.

  An opening located on the front side of the water tank 3 and provided on the upward inclined surface is covered with a lid 7 so as to be freely opened and closed. By opening the lid 7, the laundry can be taken in and out of the rotary drum 1 through the clothing entrance 8.

  The water tank 3 is supported in an anti-vibration manner so as to be swingable by the anti-vibration member 9 and the like below the main body 100. One end of the drainage path 10 is connected to the lower part of the water tank 3, and the other end of the drainage path 10 is connected to a drain valve (drainage means) 11 so that the washing water in the water tank 3 is drained. A water supply valve (water supply means) 12 supplies water into the water tank 3 through a water supply path 13.

  The control means 50 is arrange | positioned in the main body 100, and controls the motor 5, the heat pump apparatus 30, the air blower 40, etc.

  In the present embodiment, the rotary shaft 4 is provided in the tilt direction at the rotation center of the rotary drum 1, and the axial center direction of the rotary drum 1 is tilted downward from the front side toward the back side. However, they may be arranged in the horizontal direction.

  The motor 5 is composed of a direct current brushless motor or the like, and is controlled to rotate in the forward and reverse directions and the rotational speed by the control means 50 and the motor drive circuit 60, and is applied to the motor 5 by a signal from the current detection circuit 65. The load, that is, the amount of laundry is detected.

  A heat pump device 30 is provided to dry the clothes. A circulation air passage 43 is provided on the upstream side of the heat pump device 30 to guide the drying air from the rotating drum 1 and the water tank 3 to the heat pump device 30. A circulation air passage 41 is provided on the downstream side of the heat pump device 30, and guides drying air from the heat pump device 30 to the rotary drum 1 and the water tank 3. A blower 40 is provided on the downstream side of the heat pump device 30 to blow the drying air in the circulation air passages 41 and 43.

  FIG. 3 is a perspective view of the heat pump device of the dryer according to Embodiment 1 of the present invention, FIG. 4 is a plan view showing a part of the heat pump device and the heat pump device housing of the dryer, and FIG. It is a side view of a heat pump apparatus housing | casing.

  The heat pump device 30 is housed in a heat pump device housing 31. The compressor 32, the radiator 33, the decompressor 34, and the heat absorber 35 are connected by a pipe 36 filled with a refrigerant 37 so as to circulate in this order.

  First, the refrigerant 32 is changed to a high temperature and a high pressure by the compressor 32, and heat is exchanged with the air in the heat pump device housing 31 by the radiator 33. The refrigerant 37 given heat is liquefied. After that, the pressure is reduced to low pressure by the decompressor 34, and the heat absorber 35 placed next exchanges heat with the air in the heat pump device casing 31 again. The vaporized refrigerant 37 returns to the compressor 32 to form a series of refrigeration cycles.

  As the refrigerant 37 used in the heat pump device 30, a general refrigerant such as an HFC (hydrofluorocarbon) refrigerant, an HFO (hydrofluoroolefin) refrigerant, or a carbon dioxide refrigerant can be used.

  In the heat pump dryer, high-temperature and low-humidity air heated by the radiator 33 is sent into the rotary drum 1 through the circulation air passage 41 and the outlet 42 by the blower 40 connected to the housing outlet 31b. Create low-temperature, high-humidity air by contacting with a compress. This low-temperature, high-humidity air passes through the circulation air passage 43 and the housing inlet 31a, exchanges heat with the heat absorber 35, and dehumidifies by removing heat. The dehumidified air is heated again by the radiator 33, and the clothes can be dehumidified in a series of these cycles.

The heat radiator 33 and the heat absorber 35 are provided with a heat radiator side end plate 33a and a heat absorber side end plate 35a in the direction in which the compressor 32 and the pressure reducer 34 are arranged. By connecting the radiator side end plate 33a and the heat absorber side end plate 35a, the radiator 33 and the heat absorber 35 are fixed close to each other in parallel. Moreover, the space where the compressor 32 and the decompressor 34 are placed is separated from the air path.

  As the material of the end plate, a general metal material such as an aluminum alloy or a general resin material such as polypropylene can be used.

  The dehumidified water is drained to the outside by a pump 70 attached to the heat pump device housing 31. The pump can be attached to a place other than the heat pump device casing 31, and can be drained naturally without using the pump.

  In the present embodiment, for the purpose of downsizing the main body 100 or the like, the housing inlet 31a (inlet) of the heat pump device housing 31 into which the air of the heat pump device housing 31 flows in, and the housing outlet 31b (outflow of air). An angle difference is provided at the outlet and the air flow is curved in the housing. That is, a line segment Y connecting the center of the housing inlet 31a and the center of the heat absorber 35 and a line segment X connecting the center of the housing outlet 31b and the center of the radiator 33 have a predetermined angle of less than 180 degrees. Configure to When the angle is less than 180 degrees, it is easy to reduce the size when designing the arrangement of the circulation air passage 43 connected to the housing inlet 31a and the circulation air passage 41 connected to the housing outlet 31b. Further, when the angle is 0 degree, that is, the air path is parallel and the air flow direction is reversed, the drying air is bent at a right angle, so that the ventilation resistance is increased. As in the present embodiment, the ventilation resistance can be suppressed as much as possible while reducing the size of the heat pump device housing by setting the angle to approximately 90 degrees. Since the angle at this time depends on the space in the dryer body, it does not necessarily have to be 90 degrees, and can be appropriately set within a range of less than 180 degrees, such as 120 degrees.

  The space for arranging the compressor 32 and the decompressor 34 is provided outside the curve because it is a hindrance to the air path when provided inside the curve. That is, it arrange | positions from the side wall on the opposite side to the side wall in which the housing | casing inlet 31a and the housing | casing exit 31b are provided.

  In addition, in this Embodiment, although illustrated as a washing dryer, it is not restricted to this, It is good also as a dryer. Moreover, although illustrated as a drum-type dryer, a vertical washing dryer may be used.

  As described above, the dryer of the present invention is a heat pump in which the rotary drum 1 that accommodates an object to be dried, the compressor 32, the radiator 33, the decompressor 34, and the heat absorber 35 are connected by the pipe 36 filled with the refrigerant. A device 30, a heat pump device housing 31 that houses the heat pump device 30, circulation air passages 41 and 43 that guide the drying air from the rotating drum 1 to the rotating drum 1 again through the heat pump device 30, and a circulation air passage The housing inlet 31 a for introducing the drying air into the heat pump device 30 and the housing outlet 31 b for exhausting the drying air are provided on the side wall of the heat pump device 30. The line segment Y connecting the housing inlet 31a and the heat absorber 35 and the line segment X connecting the housing outlet 31b and the heat radiator 33 are angles greater than 0 degrees and less than 180 degrees. Those that are configured to form.

Thus, by providing the housing inlet 31a and the housing outlet 31b on the side wall of the heat pump device housing 31, the inflow and outflow of air into the heat pump device housing 31 can be performed in the horizontal direction. 30 heat pump devices can be arranged using the lower space. Therefore, the gap on the back side between the rotary drum 1 and the main body 100 can be reduced, and the height of the rotary drum 1 can be reduced. In addition, since a predetermined angle is formed between the direction of air flowing into the heat pump device housing 31 and the direction of air flowing out, the heat pump device 30 can be easily arranged in a narrow space. As a result, the heat pump device housing 31 can be configured to be small, and downsizing of the entire dryer can be realized.

  In the upper apparatus configuration, the line segment Y connecting the housing inlet 31a and the heat absorber 35 and the line segment X connecting the housing outlet 31b and the heat radiator 33 may be approximately 90 degrees.

  Thus, by providing the housing inlet 31a and the housing outlet 31b on the side wall of the heat pump device housing 31, the inflow and outflow of air into the heat pump device housing 31 can be performed in the horizontal direction. 30 heat pump devices can be arranged using the lower space. Therefore, the gap on the back side between the rotary drum 1 and the main body 100 can be reduced, and the height of the rotary drum 1 can be reduced. In addition, since a predetermined angle is formed between the direction of air flowing into the heat pump device housing 31 and the direction of air flowing out, the heat pump device 30 can be easily arranged in a narrow space. As a result, the heat pump device housing 31 can be configured to be small, and downsizing of the entire dryer can be realized.

  As described above, the present invention is useful as a dryer that is downsized because the air path in the heat pump device has a curved shape.

1 Rotating drum (drying room)
3 Water tank (drying room)
5 Motor 30 Heat pump device 31 Heat pump device housing 31a Housing entrance (inlet)
31b Case outlet (outlet)
32 Compressor 33 Radiator 33a Radiator side end plate (end plate)
35 heat absorber 35a end plate on the heat absorber side (end plate)
40 Blower 41, 43 Circulating air passage 100 Main body

Claims (2)

A drying chamber for accommodating a drying object;
A heat pump device in which a compressor, a radiator, a decompressor and a heat absorber are connected by a pipe filled with a refrigerant;
A heat pump device housing that houses the heat pump device;
A circulation air path that guides the drying air from the drying chamber to the drying chamber via the heat pump device;
A blower for circulating the drying air of the circulation air passage,
An inlet for introducing drying air into the heat pump device and an outlet for exhausting the drying air are provided on a side wall of the heat pump device,
A dryer configured such that a line segment connecting the inlet and the heat absorber and a line segment connecting the outlet and the heat radiator form an angle of greater than 0 degrees and less than 180 degrees. The dryer according to claim 1, wherein a line segment connecting the inlet and the heat absorber and a line segment connecting the outlet and the radiator are approximately 90 degrees.